Chapter 5: Advanced Motherboard Setup
5-23
5-10 Parallel Port/Floppy/Hard Disk and SCSI
Connections
Be aware of the following when connecting the floppy and hard disk drive
cables:
•
A red mark on a wire typically designates the location of pin 1.
•
A single floppy disk drive ribbon cable has 34 wires and two connectors
to provide for two floppy disk drives. The connector with the twisted
wires always connects to drive A, and the connector that does not have
twisted wires always connects to drive B.
Parallel Port Connector
The parallel port is located on J35.
See the table below for pin defini-
tions.
Pin Number
Function
1
Strobe-
3
Data Bit 0
5
Data Bit 1
7
Data Bit 2
9
Data Bit 3
11
Data Bit 4
13
Data Bit 5
15
Data Bit 6
17
Data Bit 7
19
ACK
21
BUSY
23
PE
25
SLCT
Pin Number
Function
2
Auto Feed-
4
Error-
6
Init-
8
SLCT IN-
10
G ND
12
G ND
14
G ND
16
G ND
18
G ND
20
G ND
22
G ND
24
G ND
26
NC
Parallel (Printer) Port Pin Definitio ns
(J35)
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